BTX halted - Error driving me nuts

:( Grrrrrr.
This BTX halted is just (I wont swear). I had a version Unknown working, something went wrong and I couldn't log in. I have tried to mem stick install 2.2.6, 2.3.2, & 2.3.3 all come up with BTX halted.
I have tried in BIOS to disable, parallel port, serial port, floppy drive, restore BIOS defaults, remove network cards, swap network cards, disable built in Network (realtek), just about everything but washing it with the power plugged in or adjusting it with C4.

It was working on v2.2.4 or 2.2.6 with a total of 3 NICS, 1 of which was a dual port. The other week when I plugged a cable in to re-enter web configure, (the old 100M Intel card) the interface just started scrolling some kind of error. Shortly afterwards it started to 'crash' and then not boot at all. I have tried 2.3.2 & 2.3.3 CE memstick versions installed using unetbootin (keeps jumping to FLOPPY mode), and I have tried LiLu usb creator on a friends Win7 PC, but all attempts now come up with BTX ERROR.

OK Change of plan. Managed to find a working DVD burner and my last blank DVD, burned 2.2.6 .iso and it booted ok, and I was able to install. Now back to the old problem. As soon as I boot, i get the F1 to continue screen, then

\

And that's it. I haven't changed hardware or software, no updates as I hadn't put the unit online, as I was waiting for my new Internet connection to be finalised, and then this '' error. Then I tried to re-install the newer version 2.3.2, & 2.3.3 and now BTX Halted Error.

Yep the Broken BIOS would make sense, but means the Motherboard is stuffed! After alll it was working fine for 9months, and then not.

Ver 2.4 you say, I don't see an I386 version. Bit of a bummer.

Does anyone know how to search for the \ fault as in backslash, or if it has been mentioned before. I have searched but can't find anything directly? Or is this the same as below with "Forward slash /" ?
As in the PC did and now does again Freezes as soon after it continues after the F1 screen.
DOC - If everything is configured correctly the kernel will begin to load. For serial console images, systems with VGA output will stop displaying with a "/" on the screen or may stop at a "BTX" message. From that point on all output is sent to COM1